Book-cover-sizing machine



March17, 1925. 1,530,292

J. A. BIETZ BOOK CQVER SIZING MACHINE.

Filed March 31. 1923 -:s Sheet-Sheet 1 a v V EN TOR- March 17, 1925. 1,530,292

J. A. BIETZ BOOK COVER SIZING MACHINE Filed March 31, 1923 3 Sheets-Sheet 2 1111111I1'I111 111;. ::::111 T:111 4 J BY a;

ATTORNEY March 17, 1925'.

J. A. BIETZ BOOK COV ER SIZING MACHINE Filed March 31, 1 3 3 Sheets-Sheet 3 IN VEN TOR Patented Mar. 17, 192 5.

UNITED STATES JOHN A. :ernra'or MASPETH,;NEW'YORK.

IBO'OK-COVER-SIZING mncn mn.

Application filed March 31,1923. Serial No. 629,176.

To all whom it may concern:

Be it known that 1, JOHN A. BlE'lZ, a citizen of the United States, and'resident of Maspeth, in the county of Queens and State of New York, have invented certain new and useful Improvements in Book-Cover- Sizing Machines, of which the following is a specification.

The present invent-ion relates to improvements in book-cover sizing machines, that is to say to machines for applying .a paste or glue wash to bindings before gilding;

The. main object of the invention. is to provide a machine of the type mentioned which is entirely automatic in its operation, the only manual labor necessarybeing to place a stack of the book-covers to be sized in operative relation to feeding d-evice'of the machine.

Another object of the invention is to produce a sizing machine which. is simple in construction, eflicient in'operation and which is capable of operating on book-covers of various sizes. s

A further object of the invention is to produce a. sizing machine capable of applying sizeto the back portions alone of the covers, or to the backportions and one of the sides thereof by a simple change of certain of the operating elements of the machine.

- With these and other objects in view, which will more fully'a-ppea-r as the nature of the invention is better understood, the

same consists in the combination, arrange ment and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion ofthe several parts and details of construction within the scope of the appendedclaims, without departing. from the spirit or sacrificing any of the advantages of the invention. 1

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figures 1 is a longitudinal central section taken through a machine constructed in accordance with the present invention; Fig. 2 is a top plan view thereof; Fig. 3. is a section taken on line 33 of Fig. 2; 4 is a front elevation, on a larger scale, of on of th s ze pp ying rollers f e chine; Fig. 5 is a front elevation of roller co-operating with the. roller shown inFig.

t for applying sizing to the-back portions of book-covers; and Fig. 6 is a similar elevation of a roller cooperating with the. one shown in Fig. 4 for applying sizing to the back portions and one of the sides of the book-covers.

In the drawings, the numeral 10 indicates the two vertical side frames of the machine, connected by horizontally extending tie rods 11. On these side frames is mounted a table 12, from which rises a cage 13, into which a stack of book-covers may be placed, longi applying mechanism. These guides are,

preferably, adjustable, and so is also the cage, to accommodate various sizes of bookcovers. The adjusting means has not been shown, as the same does not form part of the present invention.

The covers are forwarded, one after another, to a pair of feeding rollers, denoted by the numerals lt'and 15, by a fee-ding mechanism, whichincludes a slide 16, provided upon its rear with an upwardly extending projection 17, the latter engaging the lowermost of the stack of covers. This slide is connected by a link 18 with a" bell. crank lever 19, said lever beingoscillatably-mounted upon a transversely extending horizontal bar 20, that is fixed to the side frames 10.

The free'end of the bell crank lever carries an anti-friction roller 21, for co-operation with a cam 22 upon a shaft 23, which is rotatably mounted in the: side frames of'the machlne, 1t receiving motion by means hereinafter to be described. A spring 24, fixed The feeding rollers-14 and 1 5 are, pref erably, made of metal, the lower roller, denoted by the numerallt, being journaled in the side frames 10, while the upper roller,

denoted by thenumeral 15,'is'carried by I arms 25, whichlare fulcrumedat 25 t0,.:the

side frames 10. To each'of these arms is attached a vertically extending rod 26,

which extends through a bridge, piece' 27 on the respective side framelO. The free ends of the rods 26 are screw-threaded as shown at 28, the threads being in mesh with wing-nuts 29. Against these nuts and the bridge pieces 27 bear springs 30,.coiled on each rod 26, to hold the rollers 1.5 under ten-- sion. The wing-nuts 29 serve to vary the tension. The book-covers are advanced, as above described, to the feeding rollers 14 and 15, which, in turn, forward them to simporting rollers 31 and 32. These rollers are spaced apart, as clearly shown in Figs. 1 and 3 of the drawings, their journals being rotatably mounted in bearings on the side frames 10. With the rollers 31 and co-operate size-applying rollers 33 and 3st, respectivelv, which are rotatably mounted on shafts 3:) and 36, respectively. The shafts 35 and 36 are journaled in slides 37, each slide carrying a vertical y extending rod 33, extendin through the bridge piece 27. The free ends of these rods are screathreaded, as shown at 39, the threads being in mesh with wing-nuts i0. Between each nut and the bridge piece is disposed a spring 4:1, coiled on the respective rod By adjusting the tension of the springs the tension of the respective size-applying; rollers relative to the supporting rollers 31 and 32 may be varied according to requirements.

Each size-applying roller comprises a shaft, as above stated, on which is held by stop rings 12 (Fig. 1) an externally screwthreaded sleeve 43, the sleeve being rotatable on the shaft. ()ver this sleeve are drawn washers 414, preferably of felt, the same be ing held in position by nuts 15, the threads of which are in mesh with the external threads of the sleeve 13. These washers extend through a width on the sleeve 43, which corresponds either to the width of the back of the boolecover or to the back and one side of the book-cover, dependingon the part or parts to be sized.

With the size-applying roller 33 cooperates a distributing roller 16, made of felt or the like, the roller being rotatably mounted on a shaft- 47. that is carried by arms 43, sa id arms being: imimivably mounted on a transverse tie rod 4-9, connecting" the side frames 10. The size is fed to the distributing roller 46 by gravity from a receptacle 50, which is mounted upon a frame member 51. the receptacle being, for instance, in the form of an oil cup and provided With a mechanism 50 for regulating the discharge of the size from the receptacle onto the distributing roller 46. A second distributing roller, denoted by the numeral 52, is mounted upon. arms 53, the latter being carried by the tie rod 49. This roller contacts'with the feed rollers 33 and 34. A second receptacle 54, on the frame member 51, discharges size onto the feed roller 34.

When a book-cover has passed between the supporting roller 32 and feed roller 34, it is brought onto a conveyor 55, for instance a belt conveyor, on which it is carried for a considerable distance, giving the size a chance to partially dry before the bookcovers are again stacked, to be brought to the gilding device.

The shaft 23, which constitutes the main driving); shaft of the machine, has mounted thereon a worm gear 56, in mesh with a worm. 57 on. a shaft 58. The last-mentioned shaft. is mounted in hearings on one of the side frames 10 and is provided with a pulley 59, driven by means of a belt from any suitable source of power. roller lat, supporting rollers 31 and 32 and a roller associated with the belt conveyor, each carry a pinion 60. The pinion of the feeding; roller 1 1 meshes with a gear 61 on the main driving shaft23. intermediate pinions 62 gearing the pinions on the above-mentioned shafts so that the feeding: roller 14, supporting rollers 31 and 32 and the roller 55 are driven at the same speed and in the same direction. The upper feeding roller 15. the size-applying rollers 33 and 34, and the distributing rollers 16 and 52 are driven by friction. The several rollers rotate in the direction of the arrows shown adjacent the same in Fig. 1 of the drawings.

The operation of this machine is as follows: A stack of book-covers is placed into the cage 13 with the face to be sized upwards. As the shaft 58 is rotated, the slide 16 is moved to and fro the feeding rollers 14: and 15, whereby the lowermost of the stack of book-covers is brought to the feeding rollers, it being advanced by the latter to the supporting rollers 31 and 32, with which 00- operate the size-applying rollers 33 and 34. The size is fed onto the distributing roller 46 and the size-applying roller 34. The distributing roller 46, being in contact with the size-applying roller 33, spreads the paste over the entire felt surface of the latter, the size being thus applied to the book-cover. The size on the feeding roller 34 is spread by tho distributing roller 52 over the felt surface of the former before the said felt surface comes into contact with. the book cover. After the size has been applied to the cover. it is forwarded to the conveyor 55,

The shafts of the feed traveling on the latter in the direction of the arrow shown adjacent the same in Fig. 1 of the drawings.

Should either one of the supporting rollers 31 and 32 be coated with size, in case the machine is running: without a. cover being advanced by the feeding: rollers. the size is removed from the rollers 31 and 32 by scrapers 63, which are carried by the side frames 10. In this manner the underfaces of the covers are prevented from receiving size.

As shown in Fig. 5 of the drawings, the supporting rollers 31 and 32 are each made of several sections, more particularly two outer sections '64 and a central section 65. These sections are of the same diameter,

when the back of a cover is to be sized, but the central section is of a larger diameter as shown at 66 in Fi 6, in case the back and one of the sides of a cover is to be sized. In this case, it becomes necessary to elevate somewhat the cover back, so as to bring the several sections of the cover into the same plane.

In F ig. 4 of the drawings one of the sizeapplying rollers is shownas used for sizing book-cover backs of a particular width. If covers of smaller orlarger width are to be sized, obviously the number of felt washers 4% must be reduced or increased accordingly. On the other hand, if one of the sides of the book-cover and the back is to be sized,

a still larger number of felt washers will have to be mounted on the sleeve 43, or even a longer sleeve will have to be used. The felt surface of the distributing rollers 46 and 52 may be of a width corresponding to the width of the felt surface on the paste appliying rollers, or it may be larger if desire What I claim is 1. A book-cover sizing machine, comprising two continuously driven supporting rollers, a spring-pressed size-applying roller co-operating with each supporting roller capable of moving toward and away from said supporting roller, a distributing roller 00- operating with each size-applying roller, and a feeding mechanism for advancing the book-covers to one of said supporting rollers and the size-applying roller co-operating therewith, said supporting rollers including each a section having a diameter larger than that of the remainder thereof, thereby bringing the several sections of the bookcover into the same plane.

2. A book-cover sizing machine according to claim 1, comprising a scraper co-operating with each of said supporting rollers.

Signed at New York, in the county of New York and State of New York, this 29th day of March, A. 13,1923.

JOHN A. BIETZ. 

